Nests, young, food, habits, and enemies of the voles of the genus Phenacomys.

"Aerodynamic tests were made with four geometrically similar metal propellers of different diameters, on a Wright "Whirlwind" J-5 engine in an open cockpit fuselage. The results show little difference in the characteristics of the various propellers, the only one of any importance being an increase of efficiency of the order of 1 per cent for a 5 per cent increase of diameter, within the range of the tests" (p. 107).

From Summary: "The trials reported in this report were instigated by the Bureau of Aeronautics of the Navy Department for the purpose of determining accurately the speed and resistance of the U. S. S. "Los Angeles" with and without water recovery apparatus, and to clear up the apparent discrepancies between the speed attained in service and in the original trials in Germany. The trials proved very conclusively that the water recovery apparatus increases the resistance about 20 per cent, which is serious, and shows the importance of developing a type of recovery having less resistance. Between the American and the German speed trials without water recovery there remains an unexplained discrepancy of nearly 6 per cent in speed at a given rate of engine revolutions."

The National Bureau of Standards tested a 300-horsepower Hispano-Suiza engine to determine the characteristic performance of the engine at various altitudes. The engine was operated at the ground, at 25,000 feet, and at intermediate altitudes, both at full loads similar to those that would be imposed upon the engine at various speeds by a propeller whose normal full-load speed was 1,800 r.p.m. Friction horsepower also was determined in order that the mechanical efficiency of the engine might be calculated.

Patent for improvements in attachments to lister-cultivators. Illustration is included.

Patent for improvements to battery terminal fastening devices. Illustration is included.

Patent for "a vehicle such as a wagon with means for automatically pulling cotton bolls." (lines 16-17)

Patent for new and useful improvements in irrigation apparatuses. The design includes "a system of surface irrigation comprising a main supply tank, a series of reservoirs, pipes connecting said tank and reservoirs" (lines 95-98). It is intended to allow for irrigating large and small plats of land simply and efficiently.

Patent for an improved well tubing catcher, which "provides an equal and positive bearing surface for the gripper slips or dogs in all their adjusted positions" (lines 16-18), including illustrations.

Patent for "a feel spout barrier for slime thickeners, settling tanks, separating tanks and the like" (lines 8-10) with instructions and illustrations.

Patent for new format of bank checks in order to deter fraud.

Patent for an ice carrier for automobiles. Illustration is included.

Patent for vehicle, that when stopped, can be turned into a store which customers enter through one end and exit the other.

Patent for a hanger for use in car doors to prevent jamming or binding during opening or closing.

Patent for a machine that can be drawn along a row of cotton to chop the adjacent plants and cultivate the ground under the machine. The device is height adjustable by the operator.

Patent for an improved sailboat with updated "arrangement of cables controlling the movements of the sails whereby the force of the wind alone is utilized to simultaneously shift all the sails... by merely changing the course of the vessel by actuating the rudder in the usual manner." (lines 10-16), including illustrations.

Patent for improving riveting machines "used in the manufacture of leather and similar goods" (lines 12-13) such that "during the riveting operation the end of the rivet is spun and cut off to hold the bur or washer to its work" (lines 16-19).

Patent for a device capable of removing sheen and unsightly stains from clothes, such as garments and coats, to restore them to their original appearance.

Patent for a new and improved carbon removing tool, which allows for the removal of carbon from the pistons of internal combustion engines. Includes illustrations.

Patent for new and useful improvements to Dredge-Pumps. The pump is used to draw up sand and gravel from the bottom of a river.

Patent for simple and inexpensive sleeve puller, primarily for "pulling sleeves from the rear axle housing of a motor vehicle" (lines 13-14), with illustrations.

Patent for new and useful improvements to the Vehicle-Wheel. Tire may be formed into a disk wheel constructed with nuts, bolts, rivets, and screws to compensate for any regular and irregular pressure stresses a tire may be subjected to on a road. A further improvement is to provide a more resilient disk wheel to have more durability and longer use on the road.

Patent for bee feeder device that allows bees to have access to food during transport. The feeder also is designed to prevent any running and clogging, while minimizing bee death due to starvation.

Patent for providing a memorandum calendar pad to be used for 2 consecutive years, that includes a filing wire of which the leaves of the pad can be attached to or detached from the calendar stand, and that will be inexpensive to make and easy to operate.